College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- Physics Ch. 10 #1 Please see attached imagearrow_forwardExample E: Two identical strings are hung from a horizontal support as shown. A block of mass 5.0 kg is suspended from the pair of springs. When the block is in equilibrium, each spring stretches 10 cm. What is the force constant of each spring? wwwwwww 5.0 kgarrow_forwardA tree contractor has been hired by a homeowner to remove a k damaged tree from a previous storm. The top of the tree broke off, leaving the trunk in the ground. The arborist will remove the tree by attaching a rope near the top and cutting the base close to the ground. The scenario is shown in the figure. 2 The distances in the figure are z = 14.7 m, h 1.45 m, h y = 5.66 m and x = 10.64 m. If the arborist pulls on the rope 1.. with a force of magnitude F 35.1 N, write the expression X for the torque T with respect to the base P of the tree using ijk unit vector notation, i i = T,i + Tyj + t;k where Tx, Ty» and Tz are the values of the torque components in the x-, y-, and z-directions, respectively. = N•marrow_forward
- Two identical, side-by-side springs with spring constant 240 N/m support a 2.00 kg hanging box. Each spring supports the same weight. By how much is each spring stretched?arrow_forwardA typical jar that has been tightened to a reasonable degree requires 2.0 N ⋅ m to open. If you grab a 7.0-cm-diameter jar lid with one hand so that your thumb and fingers exert equal magnitude forces on opposite sides of the lid, as shown, what is the magnitude of each of the forces?arrow_forwardThe diagram below shows a particle in equilibrium under the forces shown. Obtain an equation by resolving in the Ox direction, then obtain an equation by solving in the Oy direction, and then use these equation to find the unknown force and angle. y 45° 3 N 1 N P Ꮎ ; x 15√2 Narrow_forward
- A 2.00-m-long, 1.00-mm-diameter wire is suspended from the ceiling. Hanging a 4.50 kg mass from the wire stretches the wire’s length by 1.00 mm. Use g = 10.0 m/s2. What is the stress in this wire, ____ ×107 N/m2? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.arrow_forwardA-- В The figure above shows a track consisting of a straight section that connects to a circular section. Three locations are indicated: location A on the straight section of the track, location B at the bottommost point of the track, and location C at the point where the track is vertical. Locations A and C are at the same height. A block is released from rest at the top of the straight section of the track. There is negligible friction between the track and the block. (a) Is the magnitude of the normal force exerted on the block by the track at location A greater than, less than, or equal to the normal force at location B? Justify your answer. B I U x² x2 0 / 10000 Word Limit !!! IIarrow_forwardAfter an unfortunate accident occurred at a local warehouse, you were contracted to determine the cause. A jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure. The horizontal steel beam had a mass of 90.20 kg per meter of length, and the tension in the cable was T = 12820 N. The crane was rated for a maximum load of 500 kg. The acceleration due to gravity is g = 9.810 m/s². 2.250 m, 0.594 m, x = 1.250 m, and h = If d = 5.290 m, s = what was the magnitude of W₁ (the load on the crane) before the collapse? What was the magnitude of force Fp at the attachment point P? h W₁ = Fp = d 0 W₁ L 1 N Narrow_forward
- A trapeze artist weighs 8 x 102 N. The artist is momentarily held to one side of a swing by a partner so that both of the swing ropes are at an angle of 30° with the vertical. IN such a condition of static equilibrium, what is the horiżontal force being applied by the partner? O' 972.7 N O 461.9 N O 246.1 N 182.1 Narrow_forwardⒸ Macmillan Learning A block of mass m = 6.23 kg is attached to a spring that is resting on a horizontal, frictionless table. The block is pushed into the spring, compressing it by 5.00 m, and is then released from rest. The spring begins to push the block back toward the equilibrium position at x = 0 m. The graph shows the component of the force (in newtons) exerted by the spring on the block versus the position of the block (in meters) relative to equilibrium. Use the graph to answer the questions. How much work W is done by the spring in pushing the block from its initial position at x = -5.00 m to x = 2.20 m? W = V = -59.04 Incorrect What is the speed of the block when t reaches x 2.20 m? 2.41 Incorrect Umax = What is the maximum speed max of the block? 3.63 J Incorrect m/s m/s 6 5. 4. 3. 2 ↓ L₁ -3. -4. -5. -6. F (N) x(m) $arrow_forwardTo run Slap-chop and use Sham-wow you need to be in shape. For a work out, the man in the figure uses a device consisting of four springs arranged as shown. Each spring has a spring constant of 75.5 N/m. The hands holding the unstretched device are 36.34 cm apart. If the person can extend the springs to 61.87 cm apart, what is the maximum lateral force exerted by each hand?arrow_forward
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